gday mate all great in the land of OZ
Nothing wrong with the way your doing it but you dont have to do it that way, everytime I wash the car I give the top a good suds up, using adams of course, the Ragg Topp is a 2 part system so all you need to do is apply the cleaner scrub it down a good hose off, dry it off and add the protectant should be good for a year or 2 depending on were it lives and time it spends on the road, mine lives inside and is mostly a weekend car, did mine a year ago, water still beads off it like crazy